BadAss BA-2814-1120 Motor Propeller Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (6S)
14-Pole 14-Turn Delta 1120 RPM/Volt Io = 1.58 Amps @ 10v Rm = 0.031 Ohms 55 Amps 1225 W 
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 35.6 mm,  1.402 in. 34.0 mm,  1.339 in. 55.5 mm,  2.185 in. 5.00 mm,  0.197 in. 117 gm,   4.13 oz
 
Test Data From Input 10.0 V 12.0 V 14.0V 16.0V Measured Kv value Measured Rm Value
Sample Motor Io Value 1.584 A 1.970 A 2.127 A 2.289 A 1129 RPM/Volt @ 10V 0.0310 Ohms
 
3-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 9x6-E 3 11.1 25.69 285.2 10,896 61.9 1263 44.54 4.43
APC 9x7.5-E 3 11.1 37.89 420.6 10,054 71.4 1338 47.19 3.18
APC 9x8x3-E 3 11.1 39.63 439.9 9,864 74.7 1715 60.50 3.90
APC 9x9-E 3 11.1 42.50 471.8 9,688 82.6 1281 45.17 2.71
APC 10x5.8-F2B 3 11.1 33.38 370.5 10,382 57.0 1698 59.88 4.58
APC 10x5-E 3 11.1 30.35 336.9 10,541 49.9 1592 56.16 4.73
APC 10x6-E 3 11.1 33.93 376.6 10,309 58.6 1671 58.94 4.44
APC 10x6-F 3 11.1 28.04 311.2 10,745 61.1 1462 51.58 4.70
APC 10x7-E 3 11.1 39.19 435.0 9,921 65.8 1677 59.14 3.85
APC 10x8-E 3 11.1 43.28 480.5 9,626 72.9 1664 58.70 3.46
APC 10x10-E 3 11.1 53.90 598.3 8,791 83.2 1329 46.87 2.22
APC 11x5.5-E 3 11.1 41.86 464.7 9,723 50.6 2065 72.84 4.44
APC 11x7-E 3 11.1 48.07 533.6 9,280 61.5 2110 74.44 3.95
APC 11x8-E 3 11.1 51.67 573.6 8,980 68.0 1958 69.05 3.41
APC 11x8-F 3 11.1 44.40 492.9 9,520 72.1 2009 70.87 4.08
APC 11x8.5-E 3 11.1 54.06 600.0 8,757 70.5 1995 70.38 3.33
APC 12x6-E 3 11.1 51.40 570.6 8,956 50.9 2387 84.19 4.18
APC 12x6-F2B 3 11.1 50.89 564.9 9,024 51.3 2327 82.07 4.12
APC 13x4-E 3 11.1 46.26 513.5 9,382 35.5 2469 87.10 4.81
APC 13x4.5-F2B 3 11.1 51.72 574.0 8,930 38.1 2533 89.36 4.41
APC 13x5.5-E 3 11.1 54.44 604.3 8,684 45.2 2601 91.74 4.30
BadAss 10x5-EW 3 11.1 28.07 311.5 10,741 50.9 1441 50.83 4.63
BadAss 10x6-EW 3 11.1 38.14 423.4 10,003 56.8 1364 48.10 3.22
BadAss 10x7-EW 3 11.1 39.41 437.5 9,902 65.6 1301 45.89 2.97
BadAss 10x8-EW 3 11.1 43.24 480.0 9,625 72.9 1410 49.74 2.94
BadAss 11x5-EW 3 11.1 36.11 400.8 10,153 48.1 1767 62.31 4.41
BadAss 11x6-EW 3 11.1 40.98 454.9 9,774 55.5 1937 68.33 4.26
BadAss 11x7-EW 3 11.1 41.45 460.1 9,744 64.6 1923 67.83 4.18
BadAss 11x8-EW 3 11.1 51.30 569.5 8,957 67.9 1592 56.17 2.80
BadAss 12x6-EW 3 11.1 48.10 533.9 9,218 52.4 2163 76.31 4.05
BadAss 12x7-EW 3 11.1 54.28 602.5 8,696 57.6 2200 77.59 3.65
BadAss 13x6-EW 3 11.1 55.94 620.9 8,771 49.8 2548 89.88 4.10
GemFan 10x6-F 3 11.1 30.93 343.3 10,521 59.8 1599 56.42 4.66
GemFan 11x8-F 3 11.1 51.67 573.5 8,921 67.6 1804 63.63 3.15
MAS 9x7x3 3 11.1 35.06 389.1 10,223 67.8 1637 57.74 4.21
MAS 10x5x3 3 11.1 31.69 351.8 10,486 49.6 1682 59.34 4.78
MAS 10x7x3 3 11.1 43.66 484.6 9,442 62.6 1987 70.10 4.10
MAS 11x7x3 3 11.1 50.89 564.9 9,021 59.8 2231 78.68 3.95
MAS 11x8x3 3 11.1 53.76 596.7 8,744 66.2 2237 78.92 3.75
MAS 12x6x3 3 11.1 54.82 608.5 8,620 49.0 2399 84.63 3.94
                     
4-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 7x6-E 4 14.8 22.45 332.2 15,136 86.0 1162 41.00 3.50
APC 7x7-E 4 14.8 27.83 411.9 14,776 97.9 1160 40.90 2.82
APC 7x9-SP 4 14.8 30.54 452.0 14,561 124.1 921 32.50 2.04
APC 8x4-E 4 14.8 25.90 383.4 14,919 56.5 1480 52.19 3.86
APC 8x6-E 4 14.8 35.55 526.1 14,008 79.6 1667 58.81 3.17
APC 8x8-E 4 14.8 43.73 647.2 13,381 101.4 1579 55.68 2.44
APC 9x4.5-E 4 14.8 36.17 535.3 13,961 59.5 2096 73.94 3.92
APC 9x6-E 4 14.8 41.84 619.2 13,513 76.8 1986 70.06 3.21
APC 9x7.5-E 4 14.8 58.83 870.7 12,087 85.8 1955 68.95 2.24
APC 9x8x3-E 4 14.8 59.32 878.0 11,962 90.6 2560 90.30 2.92
APC 10x5-E 4 14.8 49.27 729.1 12,913 61.1 2402 84.73 3.29
APC 10x5.8-F2B 4 14.8 52.48 776.7 12,668 69.6 2652 93.54 3.41
APC 10x6-E 4 14.8 54.07 800.2 12,504 71.0 2443 86.17 3.05
APC 10x7-E 4 14.8 61.45 909.4 12,225 81.0 2428 85.65 2.67
BadAss 10x5-EW 4 14.8 43.73 647.2 13,373 63.3 2247 79.25 3.47
BadAss 10x6-EW 4 14.8 56.76 840.0 12,228 69.5 2013 70.99 2.40
BadAss 11x5-EW 4 14.8 55.28 818.2 12,361 58.5 2667 94.08 3.26
GemFan 7x6-F 4 14.8 27.14 401.6 14,823 84.2 910 32.11 2.27
GemFan 7.5x4-E 4 14.8 34.67 513.1 14,037 53.2 1504 53.05 2.93
GemFan 8x5-F 4 14.8 25.51 377.6 14,940 70.7 1420 50.08 3.76
GemFan 9x5-F 4 14.8 33.82 500.6 14,130 66.9 1945 68.62 3.89
GemFan 10x6-F 4 14.8 47.39 701.3 13,032 74.0 2505 88.35 3.57
MAS 7x4x3 4 14.8 17.85 264.2 15,510 58.8 1065 37.55 4.03
MAS 8x6x3 4 14.8 35.28 522.2 14,034 79.7 1873 66.06 3.59
MAS 9x7x3 4 14.8 53.12 786.2 12,593 83.5 2547 89.85 3.24
MAS 10x5x3 4 14.8 48.54 718.3 12,980 61.5 2659 93.78 3.70
 
5-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 7x4-E 5 18.5 26.34 487.2 18,785 71.2 1549 54.64 3.18
APC 7x5-E 5 18.5 32.81 607.0 18,264 86.5 1564 55.18 2.58
APC 7x6-E 5 18.5 34.21 632.9 18,114 102.9 1653 58.32 2.61
APC 7x7-E 5 18.5 41.59 769.3 17,465 115.8 1630 57.49 2.12
APC 7x9-SP 5 18.5 43.67 807.8 17,335 147.7 1305 46.02 1.62
APC 8x4-E 5 18.5 39.58 732.3 17,664 66.9 2114 74.58 2.89
APC 8x6-E 5 18.5 54.21 1002.8 16,410 93.2 2296 80.99 2.29
APC 8x8-E 5 18.5 63.32 1171.4 15,592 118.1 2135 75.30 1.82
APC 9x4.5-E 5 18.5 54.52 1008.5 16,397 69.9 3029 106.84 3.00
APC 9x6-E 5 18.5 62.92 1164.0 15,830 89.9 2762 97.44 2.37
GemFan 7x6-F 5 18.5 37.43 692.5 17,834 101.3 1333 47.03 1.93
GemFan 7.5x4-E 5 18.5 53.10 982.3 16,422 62.2 1944 68.55 1.98
GemFan 8x5-F 5 18.5 35.89 663.9 17,984 85.2 2060 72.66 3.10
GemFan 9x5-F 5 18.5 49.15 909.2 16,820 79.6 2771 97.73 3.05
GemFan 10x6-F 5 18.5 66.61 1232.2 15,084 85.7 3425 120.80 2.78
MAS 7x4x3 5 18.5 25.67 474.8 18,816 71.3 1528 53.89 3.22
MAS 8x6x3 5 18.5 50.65 937.1 16,726 95.0 2681 94.57 2.86
 
6-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 6x4-E 6 22.2 20.24 449.3 23,375 88.5 1123 39.62 2.50
APC 6x4.5-E 6 22.2 25.80 572.7 22,865 97.4 1631 57.52 2.85
APC 6x5.5-E 6 22.2 25.82 573.2 22,866 119.1 1115 39.32 1.94
APC 6x6-E 6 22.2 28.04 622.6 22,645 128.7 1250 44.11 2.01
APC 6.5x5.0-P 6 22.2 26.35 584.9 22,800 108.0 1331 46.94 2.28
APC 6.5x5.5-P 6 22.2 28.28 627.8 22,636 117.9 1357 47.88 2.16
APC 6.5x6.0-P 6 22.2 31.64 702.3 22,346 127.0 1364 48.11 1.94
APC 6.5x6.5-P 6 22.2 33.14 735.7 22,210 136.7 1340 47.26 1.82
APC 6.5x7.0-P 6 22.2 37.40 830.2 21,856 144.9 1274 44.92 1.53
APC 6.5x7.5-P 6 22.2 39.89 885.6 21,639 153.7 1188 41.91 1.34
APC 7x4-E 6 22.2 38.75 860.3 21,749 82.4 2144 75.62 2.49
APC 7x5-E 6 22.2 46.00 1021.2 20,954 99.2 2057 72.56 2.01
APC 7x6-E 6 22.2 47.77 1060.5 20,799 118.2 2192 77.31 2.07
APC 7x7-E 6 22.2 56.30 1249.7 20,023 132.7 2132 75.21 1.71
APC 7x9-SP 6 22.2 57.89 1285.1 19,945 170.0 1710 60.32 1.33
APC 8x4-E 6 22.2 54.89 1218.6 20,142 76.3 2722 96.00 2.23
MAS 6x4x3 6 22.2 21.64 480.4 23,247 88.1 1382 48.73 2.88
MAS 7x4x3 6 22.2 36.12 801.8 21,943 83.1 1984 69.98 2.47
© 2022 Innov8tive Designs, Inc. 
This chart, and the data contained within it, are the property of Innov8tive Designs, Inc., and may not be reproduced without permission from the author. 
Propeller Chart Color Code Explanation
   The prop is to small to get good performance from the motor. (Less than 50% power)
   The prop is sized right to get good power from the motor. (50 to 80% power)
   The prop can be used, but full throttle should be kept to short bursts. (80 to 100% power)
   The prop is too big for the motor and should not be used. (Over 100% power)
Notes about Propellers used in the Motor Tests
APC Props with -E on the part number are from the APC Thin Electric Series.  Example:  APC 10x6-E
APC Props with -F on the part number are from the APC Folding Electric Series.  Example:  APC 11x8-F
APC Props with -SF on the part number are from the APC Slow-Fly Electric Series.  Example:  APC 10x4.7-SF
APC Props with -P on the part number are from the APC Pylon Racing Series.  Example:  APC 6.5x5.5-P
APC Props with -SP on the part number are from the APC Sport Glow Series.  Example:  APC 7x6-SP
BadAss Props with -EW on the part number are from the BadAss Electric Wood Series.  Example:  BadAss 11x6-EW
GemFan Props with -F on the part number are from the GemFan Folding Electric Series.  Example:  GemFan 10x6-F
MAS Props are Master Airscrew 3-Blade Propellers.  Example:  MAS 10x5x3
PLEASE NOTE:
The Data contained in this Prop Chart is based on actual measurements, taken in a controlled test environment, at an altitude of
584 feet above sea level.  The test voltages used are based on the standard output of a Li-Po battery under load, which is 3.70 volts
per cell.  If you are using a battery that is larger in capacity than normal, or has a very high C-rating, then your actual voltages will
be higher than those shown in the chart, and this will result in a higher current and power value for every prop used.  You should
always test your actual power system with a watt meter before flying your model to make sure that you are not exceeding the 
recommended current and power ratings of the motor being used.  The prop recommendations in this chart assume that the motor
receives adequate cooling throughout its operation.  If your motor is being used inside a cowl or fuselage, you must ensure that
the motor receives sufficient airflow, and does not get too hot during operation.  It is always best to use a prop size that pulls no
more than 80% of the motors maximum recommended current value to ensure safe operation under all conditions.